If turf is what is absolutely needed, then I would absolutely till that area as deep as possible and add much organic matter. If there is standing water now, be sure to regrade properly and address those areas. If possible, install a sub surface drainage system to remove more water from the area. Then use a mix of KB and fescue. The key will be the owners keeping those damn dogs off for as long as possible. Also, talk to them about proper mowing heights as this will help it to look better if it is thin due to the high traffic.

After this I would recommend aerating at least once if not twice per year....esp. if there is still a drainage problem.